This is clearly where you (the dev’s team) are making the mistake to where you look at.
Having an overal better or equal chance than AI to get 4+ match is irrelevant in the AI’s actual problem.
You chant that like it is the magical answer to all our frustration problems, but it really don’t help.
I heard several times that devs have put a combo-breaker in the algorithm.
This is where you should have look at.
Being forced to do such a thing is a clear symptom that the problem is in the overal probability to get 4+ matches.
That probability is so huge that we see magic cascades falling from the sky, not once a year, not once a month, not once a week, but several times in a small panel of battles (GW is a great example).
And having more or equal chances than AI doesn’t help with the unfairness of the system and how much it affects you when you were trully dominating the fight or when you see the defense team destroying you in turn 2 with not a single chance to do anything.
I understand why those probabilities have been manipulated.
I’ve played a match-3 game with no manipulation and god… that’s boring.
Seeing a 4+ match is like seeing a virgin in a brothel.
So, ok for some manipulations… but not that much !!!
Do you realize that in GW we are forced to skip a lot of troops because of this ?
Probabilities to see things going deeply bad are so huge that using Destroy, Explode, Remove, Create is like tossing a coin and wait to see if AI has decided to screw you.
Do you realize that you have added a thrilling game-mode which was an exciting experience, which passionate a lot of players and now you have transformed it in a frustrating and unfair daily punishment… which can only leads to lot of players quitting GW or the whole game.
Because being randomly punished several times a day is not fun, and if a game stops to be fun, it becomes pointless.
So, all of this to simply say :
Decrease the probabilities of having 4+ matches, please.
That is where the AI’s problem is.